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Cognomen 笹井 (Yoshiki
, 笹井
) , in the world, is quite a rare family name. The cognomen 笹井 is characteristic of Cyprus, where it is quite a rare surname, Japan, where it is a rare surname, and Singapore. In absolute terms, it is commonest in China, Japan, and Indonesia. More frequently, 笹井 is the forename as well as the last name.